EP1019614B1 - Vorrichtung zur befüllung eines futterrohres sowie zur zirkulation - Google Patents

Vorrichtung zur befüllung eines futterrohres sowie zur zirkulation Download PDF

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Publication number
EP1019614B1
EP1019614B1 EP98944681A EP98944681A EP1019614B1 EP 1019614 B1 EP1019614 B1 EP 1019614B1 EP 98944681 A EP98944681 A EP 98944681A EP 98944681 A EP98944681 A EP 98944681A EP 1019614 B1 EP1019614 B1 EP 1019614B1
Authority
EP
European Patent Office
Prior art keywords
casing
valve
valve plug
seat
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98944681A
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English (en)
French (fr)
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EP1019614A1 (de
EP1019614A4 (de
Inventor
Albert Augustus Mullins
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Individual
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Individual
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Publication of EP1019614A1 publication Critical patent/EP1019614A1/de
Publication of EP1019614A4 publication Critical patent/EP1019614A4/de
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Publication of EP1019614B1 publication Critical patent/EP1019614B1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E21B21/106—Valve arrangements outside the borehole, e.g. kelly valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt

Definitions

  • the field of this invention relates to filling casing while it is being run in the hole and circulating it to aid in its proper positioning as it is being advanced into the wellbore.
  • Casing for a wellbore that has just been drilled is assembled at the surface as joints are added and the string is lowered into the wellbore. As the joints are added at the surface on the rig floor, it is desirable to fill the casing. Filling the casing before it is run into the wellbore prevents pressure imbalances on the casing as it is being advanced into the wellbore. Additionally, once the casing is filled, it may be desirable to circulate through the casing as it is being run into the wellbore. It may also be desirable to rotate the casing as it is being advanced into the wellbore. Prior devices have been developed to fill the casing and to circulate it. These devices used in the past are illustrated in U.S. patents 4,997,042 and 5,191,939.
  • the fill valve has been designed to minimize erosive effects and simplify the operation.
  • Another object of the apparatus is to eliminate the use of inflatables to simplify the design and the cost of constructing the apparatus. Accordingly, alternatives to inflatables, such as cup seals, have been employed.
  • the circulation valve has been configured to easily open fully, while at the same time allowing the fill valve to close so that the fill valve does not encounter the erosive effects of flow during circulation.
  • another objective has been to provide an apparatus with an appropriate control so that a singular valve can provide a dual function of filling and circulating.
  • an apparatus for filling and circulating casing comprising:
  • the fill path is constructed so that the valve member moves outof the main flowpath when the valve is in the open position.
  • the valve is constructed so that flow opens it and the majority of the pressure drop is taken in an area other than the interface between the valve member and the seat.
  • the apparatus is advanced further into the casing until a cup seal closes off the top of the casing.
  • internal pressure in the casing at very low applied pressures, opens a circulation valve and closes the fill valve so that circulation through the casing is accomplished through the circulation valve while bypassing the fill valve. Erosive effects from flow on the fill valve are thus eliminated during circulation.
  • An alternative dual-function valve in a circulator/filling apparatus is also disclosed where a control system senses applied pressure in the apparatus and opens the valve. If the apparatus has been inserted into the casing such that the top of the casing is closed with the cap seal, the same valve is then used to circulate.
  • the apparatus A is supported from the top drive (not shown) and has a top sub 10 with an internal passage 12. Internal passage 12 is connected to the mud pumps (not shown) for filling and circulating of the casing 14. Top sub 10 is connected to upper portion 15 of body 16 at thread 18. A cup seal 20 is mounted to sleeve 22 with support ring 24 mounted in between. A bearing 26 allows body 16 to remain stationary while the cup seal 20 can rotate with the casing 14 when inserted into the casing 14, as shown in Figure 3. Seal 28 seals between rotating sleeve 22 and stationary body 16.
  • Body 16 has a series of ports 30 which are closed off by a sleeve 32.
  • Sleeve 32 has a piston component 34.
  • Piston component 34 is separated from chamber 36 by seals 38 and 40.
  • Body 16 also comprises valve body 42 which is connected to upper portion 15 of body 16.
  • valve body 42 mounted within valve body 42 is sliding sleeve 44, which further has an internal bore 46 in fluid communication with internal passage 12.
  • Sleeve 44 has a plurality of outlets 48 which provide fluid communication from bore 46 into cavity 50.
  • Sleeve 44 terminates in a valve plug 52.
  • valve plug 52 has a pair of seals 54 and 56 which, in the closed position of the valve, contact the sealing surface 58 of the seat 60.
  • the valve body 42 has an opening 62 which, as shown in Figure 2, is positioned in such a manner that the valve plug 52 is substantially below the opening 62 when it is in the open position.
  • flow from the rig pumps enters passage 12 and flows through bore 46 through openings or outlets 48, past the sealing surface 58 and the opening 62.
  • the bore 46 is sized to take the bulk of the pressure drop across the valve body 42.
  • the sleeve 44 is biased to the closed position of Figure 1 by spring 66 acting on tab 68, which extends from sleeve 44.
  • the spring 66 is designed to hold the valve closed when the rig pumps are turned off to avoid spillage of mud on the rig floor.
  • the spring 66 is also sized to be readily overcome as soon as the rig pumps are turned on.
  • the apparatus A When the casing has been filled and it is desired to circulate the casing, the apparatus A is further lowered to the position shown in Figure 3 so that the cup seal 20 engages the indside of the casing 14. In this position, when the mud pumps are again turned on, the plug 52 is again immediately displaced into the open position, away from opening 62. Since the upper end of the casing 14 is now closed off by cup seal 20, pressure develops in the annular space 73 around the body 42. That pressure acts on surface 72 to displace the sleeve 32 and reduce the volume of chamber 36.
  • cup seals have been shown for the sealing mechanism 20, other types of seals can be used without departing from the spirit of the invention.
  • the configuration of the valve internals within valve body 42 can be altered without departing from the spirit of the invention.
  • other types of returns can be used to urge the valve within valve body 42 into a closed position. It is desirable for the valve in valve body 42 to be in the closed position when the rig pumps are not running so that residual mud within the valve body 42 does not spill on the rig floor when the apparatus A is extracted from the top of the casing.
  • check valve 74 which is located in the lower end 64. Prior to pulling the cup seal 20 out of the casing after circulating the casing and prior to adding another section of casing, the check valve 74 allows venting of any excess pressure out through bore 46 and passage 12 where at location near the rig pumps (not shown) the pressure is automatically relieved.
  • the purpose of the check valve 74 is to prevent rig personnel from pulling the cup seals 20 out of the casing 14 while there is pressure in the annular space 73.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)

Claims (9)

  1. Vorrichtung zum Füllen und Zirkulieren einer Verrohrung, umfassend:
    ein Gehäuse (16) mit einem Strömungsweg durch dasselbe, das in die Verrohrung einführbar ist,
    ein Ventil in dem Gehäuse, das ferner einen Ventilstopfen (52) und Sitz (60) aufweist, wobei das Gehäuse eine Öffnung (62) begrenzt;
    wobei der Ventilstopfen (52) bei Anlegung von Flüssigkeitsdruck in dem Gehäuse so verschoben wird, dass der Ventilstopfen (52) in Richtung auf eine Position bewegt wird, wo er sich im wesentlichen außerhalb eines Flüssigkeitsströmungswegs befindet, der sich durch das Gehäuse und hinaus durch die Öffnung (62) erstreckt; und
    wobei der Ventilstopfen (52) weiter eine Schiebehülse (44) aufweist, die sich von diesem erstreckt und sich mit diesem bewegt, durch welche eine Bohrung (46) in Flüssigkeitskommunikation mit dem Strömungsweg vorgesehen ist, wobei die Verschiebung des Ventilstopfens (52) aufgrund eines Druckabfalls in der Bohrung (46) der Hülse (44) erfolgt, die in einem Auslass (48) endet.
  2. Vorrichtung nach Anspruch 1, bei der:
    die Schiebehülse (44) vorgespannt ist, um den Ventilstopfen (52) gegen den Sitz (60) zu halten.
  3. Vorrichtung nach Anspruch 2, bei der:
    die Vorspannung durch Fluss durch die Schiebehülse (44) überwunden wird.
  4. Vorrichtung nach Anspruch 3, bei der:
    Fluss durch die Bohrung (46) in der Schiebehülse (44) ausgelegt ist, um einfach die Vorspannung kraft eines Druckungleichgewichts zu überwinden, das auf die Schiebehülse (44) einwirkt, so dass der Ventilstopfen (52) einfach eine vollständig offene Position zeitnah zum Beginn des Flusses durch die Bohrung (46) erreicht.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, weiter umfassend:
    eine Dichtung (20) am äußeren Umfang des Gehäuses (16), die mit der Verrohrung in Eingriff gebracht werden kann, wenn das Gehäuse (16) in die Verrohrung eingeführt wird;
    ein an dem Gehäuse (16) angebrachtes Umlaufventil (70), wobei das Umlaufventil (70) durch Druck bedienbar ist, der gegen dasselbe in der Verrohrung infolge von Flüssigkeitsdruck entwickelt wird, welcher um den Ventilstopfen (52) herum und durch die Öffnung (62) in dem Gehäuse (16) kommuniziert wird.
  6. Vorrichtung nach Anspruch 5, bei der:
    die Dichtung (20) bei Einführung in die Verrohrung die Oberseite der Verrohrung verschließt, um Druckaufbau zum Öffnen des Umlaufventils (70) zuzulassen, woraufhin der Ventilstopfen (52) in Kontakt mit dem Sitz (60) zurückkehrt, so dass im wesentlichen alle in das Gehäuse (16) eintretende Flüssigkeit durch das Umlaufventil (70) austritt.
  7. Vorrichtung nach Anspruch 6, bei der:
    der Ventilstopfen (52) in Kontakt mit dem Sitz (60) vorgespannt wird, woraufhin Fluss durch das Gehäuse (16) die Vorspannung überwindet, um den Ventilstopfen (52) aus dem Sitz (60) zu verschieben.
  8. Vorrichtung nach Anspruch 7, bei der:
    die Vorspannung den Ventilstopfen (52) gegen den Sitz (60) infolge einer Öffnung des Umlaufventils (70) bewegt, was eine Senkung der zum Überwinden der Vorspannung verfügbaren Kraft verursacht.
  9. Vorrichtung nach Anspruch 8, bei der:
    die Dichtung (20) an dem Körper (16) eine Topfdichtung aufweist.
EP98944681A 1997-09-05 1998-09-02 Vorrichtung zur befüllung eines futterrohres sowie zur zirkulation Expired - Lifetime EP1019614B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/924,579 US5971079A (en) 1997-09-05 1997-09-05 Casing filling and circulating apparatus
US924579 1997-09-05
PCT/US1998/018228 WO1999013196A1 (en) 1997-09-05 1998-09-02 Casing filling and circulating apparatus

Publications (3)

Publication Number Publication Date
EP1019614A1 EP1019614A1 (de) 2000-07-19
EP1019614A4 EP1019614A4 (de) 2003-07-23
EP1019614B1 true EP1019614B1 (de) 2006-07-12

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EP98944681A Expired - Lifetime EP1019614B1 (de) 1997-09-05 1998-09-02 Vorrichtung zur befüllung eines futterrohres sowie zur zirkulation

Country Status (5)

Country Link
US (1) US5971079A (de)
EP (1) EP1019614B1 (de)
DE (1) DE69835221D1 (de)
NO (1) NO319533B1 (de)
WO (1) WO1999013196A1 (de)

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US9745810B2 (en) 2010-08-09 2017-08-29 Weatherford Technology Holdings, Llc Fill up tool

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Also Published As

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EP1019614A1 (de) 2000-07-19
DE69835221D1 (de) 2006-08-24
NO20001119D0 (no) 2000-03-03
NO319533B1 (no) 2005-08-29
NO20001119L (no) 2000-04-11
WO1999013196A1 (en) 1999-03-18
US5971079A (en) 1999-10-26
EP1019614A4 (de) 2003-07-23

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